{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{8}{c}}
\toprule
                &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}&\multicolumn{1}{c}{(7)}&\multicolumn{1}{c}{(8)}\\
                &\multicolumn{1}{c}{\# activities}&\multicolumn{1}{c}{Campaign booth}&\multicolumn{1}{c}{Phone canvassing}&\multicolumn{1}{c}{Stick posters}&\multicolumn{1}{c}{Convince friends}&\multicolumn{1}{c}{Online campaigning}&\multicolumn{1}{c}{Any canvassing}&\multicolumn{1}{c}{\# days canvassing}\\
\midrule
\textbf{Panel A: Main effects} &         &         &         &         &         &         &         &         \\
                &         &         &         &         &         &         &         &         \\
Any voice treatment&0.201\sym{**}&0.056\sym{*}&    0.008&    0.016&0.052\sym{*}&    0.006&    0.020&    0.352\\
                &  (0.101)&  (0.030)&  (0.020)&  (0.029)&  (0.028)&  (0.027)&  (0.028)&  (0.344)\\
                &         &         &         &         &         &         &         &         \\
\hline          &         &         &         &         &         &         &         &         \\
 \textbf{Panel B: Type of voice} \\ &         &         &         &         &         &         &         &         \\
 Instrumental   &0.242\sym{**}&0.059\sym{*}&    0.027&    0.016&    0.047&   -0.014&    0.036&    0.291\\
                &  (0.115)&  (0.035)&  (0.023)&  (0.034)&  (0.032)&  (0.031)&  (0.032)&  (0.393)\\
                &         &         &         &         &         &         &         &         \\
Intrinsic       &    0.160&    0.054&   -0.010&    0.015&0.057\sym{*}&    0.025&    0.005&    0.413\\
                &  (0.117)&  (0.035)&  (0.023)&  (0.034)&  (0.031)&  (0.030)&  (0.032)&  (0.415)\\
                &         &         &         &         &         &         &         &         \\
\hline p(Instrumental = Intrinsic)&     0.47&     0.89&     0.10&     0.98&     0.75&     0.20&     0.35&     0.77\\
 \hline         &         &         &         &         &         &         &         &         \\
\textbf{Panel C: Feedback announcement} \\ &         &         &         &         &         &         &         &         \\
                &         &         &         &         &         &         &         &         \\
Feedback announcement&0.264\sym{**}&    0.055&    0.015&    0.024&0.052\sym{*}&    0.018&    0.015&    0.085\\
                &  (0.116)&  (0.035)&  (0.023)&  (0.034)&  (0.032)&  (0.032)&  (0.032)&  (0.392)\\
                &         &         &         &         &         &         &         &         \\
No feedback announcement&    0.143&0.058\sym{*}&    0.002&    0.008&0.052\sym{*}&   -0.005&    0.025&    0.599\\
                &  (0.117)&  (0.035)&  (0.023)&  (0.034)&  (0.031)&  (0.030)&  (0.032)&  (0.417)\\
                &         &         &         &         &         &         &         &         \\
\hline p(Feedback = No feedback)&     0.29&     0.94&     0.58&     0.66&     0.99&     0.46&     0.77&     0.23\\
 \hline Control mean&     2.42&     0.56&     0.12&     0.39&     0.70&     0.47&     0.31&     2.24\\
Number of Observations&      964&      964&      964&      964&      964&      964&      964&      961\\
\bottomrule
\end{tabular}
}
